html,
body {
  margin: 0;
  padding: 0;
}
.jwchat-doc {
  display: flex;
  min-height: 100vh;
  aside {
    width: 200px;
    padding: 15px;
    border-right: 1px solid #ccc;
    display: flex;
    flex-direction: column;
  }
  main {
    width: 100%;
    flex: 1;
    padding: 15px;
  }
}